PVS-Studio warning V600 for Notepad++

size_t Printer::doPrint(bool justDoIt)
{
  ...
  TCHAR headerM[headerSize] = TEXT("");
  ...
  if (headerM != '\0')
  {
  ...
}

This suspicious code was found in Notepad++ project by PVS-Studio static code analyzer.
Warning message is:
V600 Consider inspecting the condition. The 'headerM' pointer is always not equal to NULL.  notepadPlus printer.cpp 378

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/